| All Country Flags of the World | 0 | - | 5.00 | 3,609,718 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,527,710 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,046 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,131 |
| Flags with Crescents | 0 | - | 4.98 | 167,804 |
| Country Flag Trivia | 0 | - | 4.81 | 56,042 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,566 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,562 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,071 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,551 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,466 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,136 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,207 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,631 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,159 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,521 |
| Flags that are Red & White Only | 0 | - | 4.97 | 162,572 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,871 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,603 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,785 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,788 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,529 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,838 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,931 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,691 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,416 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,917 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,339 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,743 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,846 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,701 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,971 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,120 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,300 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,097 |
| Flags of North and South America | 0 | - | 4.99 | 368,152 |
| Former Flags | 0 | - | 4.97 | 106,841 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,671 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,167 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,878 |
| Countries by Partial Flag Images #7 | 0 | - | 4.90 | 30,987 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,740 |
| 20 Random Country Flags | 0 | - | 4.99 | 605,554 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,144 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,704 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,640 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,596 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,653 |
| Flag Maths | 0 | - | 4.78 | 57,689 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,524 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,029 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,482 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,414 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,304 |
| World Coats of Arms | 0 | - | 4.99 | 63,944 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,511 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,926 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,083 |
| Similar Flags #1 | 0 | - | 4.74 | 129,228 |
| Similar Flags #2 | 0 | - | 4.74 | 136,480 |
| Emoji Flags | 0 | - | 4.35 | 43,847 |
| Countries by Road Signs | 0 | - | 4.98 | 53,193 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,099 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,020 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 20,041 |
| Select the World Flags | 0 | - | 4.27 | 37,433 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,372 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,617 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,920 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,092 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,725 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,872 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.56 | 46,720 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,252 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,448 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,018 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,438 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,228,863 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,501 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,783 |
| Biggest Cities by Language | 0 | - | 4.96 | 239,288 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,617 |
| Pixelated World Map | 0 | - | 5.00 | 142,548 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,286 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,488 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 712,607 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,309 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,789 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,971 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,357 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,930 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,065 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,604 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,176 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,932 |
| Geography by Picture - B | 0 | - | 4.42 | 55,440 |
| Geography by Picture - H | 0 | - | 4.50 | 58,071 |
| Geography by Picture - N | 0 | - | 4.45 | 42,066 |
| Geography by Picture - R | 0 | - | 4.55 | 40,894 |
| Geography by Picture - T | 0 | - | 4.54 | 57,700 |
| Flags of Oceania | 0 | - | 5.00 | 255,749 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,031 |
| Flags of WW1 | 0 | - | 4.60 | 38,005 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,518 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,165 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,522 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,911 |
| Boundary Waters | 0 | - | 4.92 | 88,083 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,853 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,395 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,448 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,915 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,819 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,531 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,984,415 |
| Landlocked Countries | 0 | - | 4.99 | 414,395 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 555,255 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,136 |
| Satellite Images #1 | 0 | - | 4.46 | 129,060 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,026 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,682 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,682 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,827 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,437 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,744 |
| World Capitals Quiz | 0 | - | 5.00 | 5,036,761 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,778 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,601 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,723,221 |
| Merged Countries #2 | 0 | - | 4.96 | 98,528 |
| Merged Countries #6 | 0 | - | 4.91 | 72,781 |
| Merged Countries #7 | 0 | - | 4.92 | 82,030 |
| Geography by Picture - A | 0 | - | 4.39 | 60,066 |
| Geography by Picture - D | 0 | - | 4.15 | 45,518 |
| Geography by Picture - F | 0 | - | 4.31 | 50,846 |
| Geography by Picture - G | 0 | - | 4.38 | 47,814 |
| Geography by Picture - J | 0 | - | 4.16 | 38,349 |
| Geography by Picture - K | 0 | - | 4.29 | 33,031 |
| Geography by Picture - C | 0 | - | 4.31 | 56,932 |
| Geography by Picture - L | 0 | - | 4.37 | 58,784 |
| Geography by Picture - M | 0 | - | 4.14 | 40,357 |
| Geography by Picture - P | 0 | - | 4.24 | 42,318 |
| Geography by Picture - S | 0 | - | 4.38 | 46,932 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,197 |
| Islands by Picture | 0 | - | 4.29 | 106,034 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,220 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,089 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,939 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,188 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,923 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,505 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,079 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,572,843 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,411 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,228 |
| Island Countries | 0 | - | 4.99 | 707,920 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,921 |
| Himalayan Countries | 0 | - | 4.95 | 135,633 |
| Andean Countries | 0 | - | 4.94 | 82,984 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,340 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,386 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,040 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,715 |
| Danube Countries | 0 | - | 4.97 | 71,159 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,865 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,615 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,650 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,558 |
| European Landlocked Countries | 0 | - | 4.99 | 145,858 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,324 |
| Countries with the Most Species | 0 | - | 4.99 | 95,289 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,475 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,227 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,396 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,005 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,643 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,009 |
| Countries in the Alps | 0 | - | 4.86 | 116,953 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,656 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,416 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,079 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,488 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,266 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,070 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,671 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,824 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,559 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,130 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,223 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,088 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,516 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,809 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,813 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,234 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,721 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,300 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,875 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,716 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,926 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,670 |
